LITTER PRODUCTION AND NUTRIENT CHARACTERISTICS OF ABIES FARGESII NATURAL FOREST IN SHENNONGJIA NATURE RESERVE, HUBEI, CHINA

doi:10.3773/j.issn.1005-264x.2009.03.008

Abstract

Abstract:

Aims Forest litter contains many components, including remains of leaves, twigs, flowers and fruits, and is important in the transfer of energy and nutrients to the soil and plants by decomposition. Our objective is to study the functions of forest litter by analyzing litter production, nutrient concentration and nutrient return.

Methods We focused on litter production and nutrients by collecting litter from Abies fargesii natural forest and analyzing it in the lab.

Important findings Annual litter production was 5 702.99 kg·hm-2, which approximates litter production in the subtropics. The majority was leaf litter, accounting for 46.00% of total production. The annual pattern exhibited two peaks: October-November 2006 and April-May 2007. The rankings of nutrient concentration and nutrient return were: N>K>Ca>P>Mg. With its large production, leaf litter also had the largest nutrient return.

Key words: litter, yearly litter production, litter composition, nutrient concentration, nutrient return

CHUN Min-Li, XIE Zong-Qiang, ZHAO Chang-Ming, FAN Da-Yong, XU Xin-Wu, PING Liang. LITTER PRODUCTION AND NUTRIENT CHARACTERISTICS OF ABIES FARGESII NATURAL FOREST IN SHENNONGJIA NATURE RESERVE, HUBEI, CHINA[J]. Chin J Plant Ecol, 2009, 33(3): 492-498.

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URL: https://www.plant-ecology.com/EN/10.3773/j.issn.1005-264x.2009.03.008

https://www.plant-ecology.com/EN/Y2009/V33/I3/492

Figures/Tables 5

Table 1 Yearly litter production of different forest types

Fig.1 Monthly change analysis for the total litter produc-tion of Abies fargesii forest

Table 2 Yearly average concentration of N、P、K、Ca、Mg in different litter components of Abies fargesii forest (kg·hm-2)

Fig.2 Monthly concentration change analysis of N、P、K、Ca、Mg for different components of Abies fargesii forest

Table 3 Yearly nutrient return of N、P、K、Ca、Mg in different litter components of Abies fargesii forest (kg·hm-2)

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